What would happen if I connect a 32 ohm headphone driver to a car stereo receiver rated for 2 to 4 ohms with 40w output? If it will detonate the rec can someone tell me what components are needed to stop the ensuing smoke cloud? Thanks.

OK, I know that headphone drivers use just millwatts of power, so 2w would melt things, but wouldn't the resistance of the drivers drop the wattage? It has been a long time since I studied the PIE triangle. And yes, Sofaspud, I am attempting to run headphones with a car (boat) stereo, on my motorcycle in the helmet to be exact. I posted the same question earlier, but got no useable response, so I tried again using fewer words. I am not using the 3 pole 3.5mm plug and jack, I found a source for a 4 pole 3.5mm plug and jack, so combining grounds isn't an issue any more. The output of the head unit is 40 watts for 2 to 4 ohms, the resistance of the drivers is 32 ohms. Thanks is advance for the help.

You should know that people won't look out for motorcycles. You need to be as aware as possible of your surroundings and having headphones (or audio in your helmet) will block out sounds that you really need to hear.